JP4087150B2 - Winding method of wire - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention also relates to the take-take way method of the wire. In particular, a wire obtained by drawing a metal wire such as copper into a thin wire with a die, a coated wire obtained by applying an insulation coating to the wire, or an optical fiber preform obtained by heating and spinning an optical fiber, and a coating obtained by coating the optical fiber with a resin the wire of the covered wire and the like made of fiber about the way wound on a bobbin.
[0002]
[Prior art]
Conventionally, as a winding method for winding a wire made by drawing a metal wire such as copper into a thin wire with a die or a coated wire obtained by applying an insulation coating such as polyethylene to the wire, the wire taken out from the die or an extruder is guided to a dancer. A method is used in which the dancer passes through a guide pulley for traversing as a final guide pulley and is wound around a winding bobbin by a pulley traverse method.
[0003]
In this winding method, the rotation speed of the winding bobbin is controlled by the line speed and the dancer position signal so as to follow the winding thickness of the winding bobbin and fluctuations in the line linear speed. In addition, the traverse guide pulley can be changed so that the path of the wire rod is changed by the traverse guide pulley so that the winding bobbin is aligned and wound from one side of the winding bobbin to the other side. The maximum angle with the fixed type guide pulley was adjusted.
[0004]
In the case of optical fibers, the optical fiber preform is melt-spun in a furnace, coated with an ultraviolet curable resin, cured with a curing device such as an ultraviolet lamp, and then taken up with a take-up machine, and then guided. It is wound on a winding bobbin through a pulley and a dancer.
[0005]
As a winding method in this case, a bobbin traverse method for traversing a winding bobbin is widely used, unlike the metal wire described above. In this bobbin traverse method, the guide pulley as the final guide pulley does not traverse, and the take-up bobbin traverses, so that the pass line of the wire is wound with almost no change, and extra force is applied to the wire. There is an advantage that it does not work.
[0006]
An example of a conventional bobbin traverse type wire rod winding device is shown in FIG. 1 is a wire rod such as an optical fiber core, 3a is a winding bobbin having flanges 3b and 3c on both sides, 4 is a dancer that adjusts fluctuations in the winding speed of the wire 1 during winding operation, and 5 is a dancer 4 A guide pulley that guides the wire 1 to the winding bobbin 3a, 6 is a winding motor that rotates the winding bobbin 3a, 7 is a traverse motor that traverses the winding bobbin 3a and the winding motor 6, and 8 is a traverse position. A rotary encoder 19 detects the speed of the winding motor 6 and the traverse motor 7. Among these, the winding bobbin 3a, the winding motor 6, the traverse motor 7, and the rotary encoder 8 are included in the winding machine. The winding machine has an action of traversing the winding bobbin 3a in a direction orthogonal to the pass line by this mechanism.
[0007]
FIG. 2 illustrates a general process of winding the wire 1 and 2 is a take-up capstan. The wire 1 is taken from the take-up capstan 2 to the winder 3 in the direction of the arrow. Specifically, the wire 1 is sent out from a feed-out part (not shown), taken up by a take-up capstan 2, and taken up on a take-up bobbin 3 a by a winder 3 through a dancer 4 and a guide pulley 5. .
[0008]
The speed fluctuation of the winder on the take-up bobbin 3a increases or decreases the stored dose between the take-up capstan 2 and the take-up bobbin 3a. As shown in FIG. 7, the fluctuation data of the dancer 4 is sent by the detector to the control unit 19 as indicated by a broken line F, and the control unit 19 sends a rotation speed command to the winding motor 6 as indicated by the broken line G. The winding is performed while adjusting the rotation speed of the winding motor 6. On the other hand, the winder 3 always detects the traverse position by the rotary encoder 8, sends the traverse position data to the control unit 19 as indicated by the broken line I, and causes the traverse motor 7 to invert at the determined inversion position. The controller 19 gives a rotational speed command as shown by a broken line H so that the wire 1 is uniformly wound around the winding bobbin 3a.
[0009]
However, in the pulley traverse method or the bobbin traverse method described above, there is no particular problem when the wire speed is low, but when the wire speed increases, the winding bobbin 3a winds at the edges 3b and 3c on both sides. The problem of getting worse is more likely to occur.
[0010]
Conventionally, the traverse inversion position has been determined based on data obtained by experiments so that the wire 1 is wound into a uniform winding shape. However, when a thin wire such as an optical fiber core is uniformly wound, slight accuracy failure of the winding bobbin 3a, distortion or bending of the wrinkle, or deviation when the winding bobbin is fixed to the winding machine 3 For example, when the winding shape in the vicinity of the heel is thickened or thinned, a “winding defect” in which the winding becomes uneven is generated. Further, as the line speed is increased, the winding rotation speed and the traverse speed are also increased, and even a slight shift in the reversal position causes a winding failure and hinders an increase in the apparatus linear speed.
[0011]
In addition, if the winding bobbin is thickened during the winding operation, the wire 1 is wound more than the appropriate amount at the winding, and conversely, it is wound at the winding. If it gets thinner, it means that the wire 1 is wound less at the edge than the appropriate amount. For this, the operator visually confirms the winding failure, and if the winding is thick, the inversion position is changed to the inside, and if the winding is thin, the inversion position is changed to the outside, so that the winding shape is uniform. Attempted to do. However, the workability is greatly reduced and the reversal position is changed by manual confirmation by the operator, so incorrect judgment and incorrect operation may occur. As a result, winding failure occurred.
[0012]
[Problems to be solved by the invention]
The present invention solves the above-mentioned conventional problems, and when winding a wire rod onto a winding bobbin, the winding bobbin is bent when the winding bobbin is inaccurate, deformed, or misaligned when the bobbin is fixed. Even so, an object of the present invention is to provide a winding method for making the winding state uniform. Another object of the present invention is to increase the apparatus linear speed by providing the winding method .
[0013]
[Means for Solving the Problems]
The present invention achieves the above object by the following means.
That is,
(1) A winding bobbin provided with a winding bobbin that winds the wire while relatively traversing in the axial direction of the winding bobbin perpendicular to the path line to which the wire is supplied, and supplying the wire to the winding bobbin Guide pulley, and a winding method of a wire using a dancer that adjusts a change in winding speed of the wire before the winder and the guide pulley, the displacement of the dancer from a reference position the monitor, hit the be fed back to the determination of the traverse reversing position between the bobbin and the wire,
(I) A moving average of the dancer's transition at the time of traverse inversion is set as a first monitoring condition whether or not the moving average value exceeds a predetermined threshold value; and
(Ii) Whether the moving average value exceeds the threshold value continuously for a set number of times is set as a second monitoring condition,
A wire winding method, wherein the traverse reversing position is changed by feeding back a result of determining the winding state of the wire according to the first monitoring condition and the second monitoring condition ,
( 2 ) The winding method of the wire according to ( 1 ), wherein the traverse inversion position is changed when the threshold value is exceeded once.
( 3 ) The method for winding a wire according to (1) or (2), wherein the moving average value is determined based on transition data of the dancer position in the vicinity of the traverse reversal position ,
( 4 ) After the change of the traverse reversal position, the reversal position is not further changed until a predetermined number of windings are performed, wherein the wire rod according to any one of (1) to (3) Winding method,
( 5 ) If the threshold value is not exceeded during the predetermined number of windings, the change of the traverse reversal position is canceled. ( 4 )
(6) winding method of wire rod according to claim to any one of the displacement of the dancer is characterized by continuously measuring by the potentiometer (1) to (5),
( 7 ) The wire rod winding method according to any one of (1) to ( 6 ), wherein the wire rod is a coated optical fiber, and
( 8 ) In changing the traverse inversion position, the inversion position correction amount is shifted inward or outward, and the winding operation is continued while automatically correcting the effect while continuously checking this effect. The method for winding a wire according to any one of (1) to (7), wherein:
[0014]
DETAILED DESCRIPTION OF THE INVENTION
The method of the present invention is characterized in that the displacement of the dancer from the reference position is monitored and fed back to the determination of the traverse reversal position between the wire rod and the bobbin. There, the winding state where the wire is wound around the winding bobbin is determined based on the position information of the dancer. The feedback can include changing the traverse inversion position.
[0015]
In the conventional method, the traverse reversal position at the start of operation was not automatically changed during the winding operation, but in the present invention, even during the winding operation, it corresponds to the winding state of the wire. The traverse inversion position is automatically changed.
[0016]
Taking the movement of the dancer when the wire is being taken up at the edge where the winding condition is likely to deteriorate, for example, if the reversal position of the traverse is shifted outside the appropriate position, more The wire is wound up to form a thick shape, and the wire stored in the dancer is released, and the dancer moves upward. On the other hand, if the traverse reversal position is shifted inward from the appropriate position, the wire is wound up and formed in a narrow shape at the edge, and the dancer becomes the direction in which the wire is stored by the dancer. It will move downward.
[0017]
In the present invention, preferably, the position of the dancer when it is wound in an appropriate winding state is used as a reference, and the deviation amount from the dancer's reference is digitized and taken into the PLC as the control unit. However, the dancer position information is captured only in a limited area near the edge, and disturbance is prevented from being captured. The dancer's position information is fetched multiple times, averaged, continuously judged, etc. When the position information exceeds a set threshold, if it exceeds the upper limit, it is judged to be thick, and if it is below the lower limit It shall be judged that the wire is thin.
[0018]
Based on the above determination, if it is determined that the winding is thick, the reversing position is outside the appropriate position as described above, so the reversing position is changed to the inside by a certain set amount. If it is determined, the inversion position is changed outward by a certain set amount.
[0019]
Each change of the reversing position described above is for the purpose of correcting the winding state that has become non-uniform during the winding operation, and the winding state has been improved by judging the winding state described above. That is, when it is confirmed that the correction has been completed, it is promptly changed to a new reverse position (not limited to the reverse position at the start of operation and the reverse position changed for correcting the winding state). is there.
[0020]
In the present invention, the traverse inversion position may be changed when the threshold value is exceeded once. Further, several types of threshold values may be provided.
Further, the traverse inversion position may be changed when the threshold value is continuously exceeded a predetermined number of times.
The traverse inversion position may be changed when the moving average value of the displacement data of the dancer exceeds a predetermined threshold value.
Preferably, after the traverse reversal position is changed, no further reversal position change is performed until a predetermined number of windings are performed. More preferably, when the threshold value is not exceeded during the predetermined number of windings, the change of the traverse inversion position is canceled.
[0021]
In the present invention, preferably, the displacement of the take-up dancer is to continuously measure potentiometer or encoder, synchro transmitter or the like. Preferably, the displacement is determined near the reverse position. Preferably, a switch such as a proximity switch detects that the displacement of the winding dancer has exceeded a threshold value.
[0022]
In the present invention, one preferable wire is a coated optical fiber.
[0023]
With the above winding method, when winding the wire rod on the winding bobbin, the dancer's vertical fluctuation amount is judged by the numerical processing of the dancer, and the reversing position is automatically changed, Immediately the deteriorated winding state is improved. In addition, after the improvement, a change to a new inversion position is performed, thereby preventing the recurrence of the deterioration of the winding state of the bobbin.
[0024]
Further, as an embodiment of an apparatus for carrying out the method of the present invention includes a winding bobbin, winding the wire while axially relative traverse of the winding bobbin orthogonal to the pass line where the wire is fed Take-up machine, guide pulley for supplying wire to a take-up bobbin, dancer for adjusting fluctuations in the winding speed of the wire placed in front of the winder and guide pulley, and a wire provided with a control unit In the winding device, the control unit determines a winding state of the wire based on information on a displacement from a position serving as a reference of the dancer, and feeds it back to the determination of the traverse reversal position between the wire and the bobbin. is the wire winding device Ru mentioned. This apparatus can be used for the wire winding method described above.
[0025]
【Example】
Examples of the present invention will be described below.
The outline of the apparatus used in this example is shown in FIG. The winding device includes a winding machine, a dancer 4 that adjusts fluctuations in the winding speed of the wire 1 during the winding operation, a guide pulley 5 that guides the wire 1 from the dancer 4 to the winding bobbin 3a, and a programmable controller ( The control part 9 which is PLC) is provided. The winding machine includes a winding bobbin 3a having hooks 3b and 3c on both sides, a winding motor 6 for rotating the winding bobbin 3a, a traverse motor 7 for traversing the winding bobbin 3a and the winding motor 6, a traverse A rotary encoder 8 for detecting the position is provided and has a function of traversing in the axial direction of the winding bobbin perpendicular to the pass line. In this winding apparatus, the wire 1 is wound up in the same manner as the general process shown in FIG. That is, the wire 1 is delivered from the delivery unit, taken up by the take-up capstan 2, and taken up by the take-up bobbin 3 a by the winder 3 through the dancer 4 and the guide pulley 5.
[0026]
A rotation speed command B is given from the control unit 9 as indicated by a broken line B with respect to the winding motor 6. On the other hand, the rotary encoder 8 always detects the traverse position data D and supplies it to the controller 9 as indicated by the broken line D.
[0027]
Here, the take-up speed in the take-up capstan 2 is substantially constant during the winding operation. Therefore, the stored dose of the wire 1 fluctuates when the winding shape in the winding bobbin 3a is thicker or thinner than the portion where the winding shape is uniform. The dancer 4 moves upward. On the contrary, when the winding shape is reduced, the storage line increases and the dancer 4 moves downward. The winding shape deteriorates mostly in the vicinity of the bobbin heel where the traverse is reversed, so the traverse position data given to the controller 9 is within the range of 3-5 mm from the bobbin heel Only the position information of the dancer is taken into the control unit 9 as indicated by the broken line A. This take-up range was appropriately changed depending on the winding width of the winding bobbin and the wire diameter of the wire being wound.
[0028]
FIG. 3 is a graph showing how the dancer position information is captured and reversed. 10 is the reverse position, 11 is the dancer's reference position, and 15 is the traverse position data. The dancer position information 14 is below the reference position 11 in the data capture section. That is, it can be seen that the dancer 4 moves downward when the traverse is reversed. The dancer position information 14 fetched into the control section 9 in the fetch section stores the maximum value as the dancer data E at the time of traverse inversion when the maximum value is larger than the reference position 11 and the minimum value is smaller than the reference position.
[0029]
FIG. 4 shows the continuous acquisition of the position information of FIG. 3, where E _{A1 to} E _A5 are dancer data at the time of traverse reversal in the winding bobbin 鍔 3b, and E _{B1 to} E _B6 are winding bobbin 鍔 3c. Dancer data at the time of traverse inversion, 12 is a winding thickness determination threshold value, and 13 is a winding thinness determination threshold value. If the deterioration of the winding shape can be determined at an earlier stage, the winding shape can be easily improved. For that purpose, the threshold value is desired to be closer to the reference position 11, but if it is easily determined that the winding is thick or thin, the winding shape is erroneously determined and appropriate correction cannot be performed. Therefore, “winding thickening” or “winding thinning” was determined using the following two conditions.
[0030]
As a first condition, the dancer data E _A and E _B at each kite stored in the control unit 9 is subjected to moving average, and whether or not the moving average value exceeds a set threshold value is defined as a condition. did. As a second condition, it was also determined whether or not the dancer data E _A and E _B at each heel exceeded a set threshold value continuously for a set number of times. The threshold values in the two conditions can be set individually. When the above two conditions were satisfied at the same time, the winding state of each heel was determined as “winding thick” or “winding thin”.
[0031]
If the control unit 9 determines that the winding is defective such as “thickening” or “thinning” by the above determination, it is fed back to the determination of the traverse reversal position between the wire rod and the bobbin by the traverse speed command C, and is initially set. Change the traverse reversal position at the start of operation. In the case of FIG. 5, which shows the thickened state of the wire 1 in the vicinity of a bobbin rod 3d on one side, it is expected that the wire has been wound up with the traverse reversal position in the state (a). In order to improve this, the set value xmm, which is the reversal position correction amount at the time of winding-up, is changed inward to become a reversal position (b). However, it was found that if the winding at the reversal position (B) was continued, this time, on the contrary, the “winding” state was reached. Therefore, after changing to the inversion position (b), the effect was performed for a certain number of winding layers. During the effect check, if both of the above-mentioned two determination conditions are continuously satisfied, “no effect” is set. If both are not satisfied, “no effect” is set. If “no effect” is set, the reverse position ( (B) Change the setting value xmm inward further to the reverse position (c) and check the effect again. On the other hand, in the case of “effective”, if it is returned to the reverse position (b), it is highly likely that the “roll over” state will recur. The set value ymm, which is the position change amount, is changed inwardly to the reverse position (d), and the winding operation is continued. It should be noted that the number of effect confirmation winding layers, the correction amount xmm at the time of winding thickness, and the change amount ymm after completion of correction can be arbitrarily set.
[0032]
Similarly, how to deal with a winding state will be described. FIG. 6 shows a winding state of the wire 1 in the vicinity of the bobbin rod 3d on one side. In this case, it is likely that the wire has been wound up with the traverse reversal position set to (e), and in order to improve this, the set value x ′ mm, which is the reverse position correction amount at the time of winding, is changed to the outside. To the reverse position (f). However, it was found that if the winding at the reversal position (f) was continued, this time, on the contrary, the “roll over” state was reached. Therefore, after changing to the above reversal position (f), the same effect was confirmed. In the case of “no effect”, the effect is confirmed again by changing the setting position x ′ mm further outward than the reversal position (f) to the reversal position (g). On the other hand, in the case of “Effective”, if it is returned to the reverse position (e) and the “winding” state is likely to recur, it is reversed after the thinning correction is completed from the original reverse position (e). The set value y′mm, which is the position change amount, is changed to the outside by changing to the reverse position (h), and the winding operation is continued. In this case, the number of winding layers for confirming the effect, the correction amount x'mm at the time of thinning, and the change amount y'mm after completion of correction can be arbitrarily set.
[0033]
In this embodiment, the case where it is used for the bobbin traverse method has been described. However, according to the present invention, the control unit determines whether the traverse guide pulley is reversed or the traverse guide pulley according to the displacement information from the position serving as the reference of the dancer. By giving a command to adjust the maximum angle formed between the front and the fixed guide pulley of the preceding stage and the like, the pulley traverse method can be used.
[0034]
【The invention's effect】
More winding take Way Method of the wire of the present invention, even when the state wound in wound expansion or winding thinning or the like in the take-up bobbin Tsubagiwa during winding operation becomes non-uniform, promptly improve this It became possible to maintain a uniform winding state. As a result, the device linear speed can be increased.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a wire winding device used in the method of the present invention.
FIG. 2 is an explanatory diagram of a wire winding process in a wire winding apparatus.
FIG. 3 is a graph showing how dancer position information is captured.
FIG. 4 is a diagram illustrating threshold values used for continuous capture of dancer position information and determination of each winding shape;
FIG. 5 is a diagram showing a state in which a winding thickness is generated near the heel of a winding bobbin and a transition of a traverse inversion position.
FIG. 6 is a diagram showing a state in which winding is occurring near the heel of a winding bobbin and a transition of a traverse inversion position.
FIG. 7 is an explanatory diagram of a conventional wire winding device.

Claims (8)

A winding machine that includes a winding bobbin and that winds the wire while traversing in the axial direction of the winding bobbin that is orthogonal to the path line to which the wire is supplied, and a guide pulley that supplies the wire to the winding bobbin And a winding method of the wire using a dancer that adjusts the fluctuation of the winding speed of the wire in the preceding stage of the winder and the guide pulley,
Monitoring the displacement from the position serving as a reference of the dancer, hits is fed back to the determination of the traverse reversing position between the bobbin and the wire,
(I) A moving average of the dancer's transition at the time of traverse inversion is set as a first monitoring condition whether or not the moving average value exceeds a predetermined threshold value; and
(Ii) Whether the moving average value exceeds the threshold value continuously for a set number of times is set as a second monitoring condition,
A wire winding method, wherein the traverse reversing position is changed by feeding back a result of determining the winding state of the wire according to the first monitoring condition and the second monitoring condition . Winding method according to claim 1 wire of wherein changing the traverse reversing position when exceeded once the threshold. 3. The wire winding method according to claim 1 or 2, wherein the moving average value is determined based on transition data of the dancer position in the vicinity of the traverse reversal position . The method for winding a wire according to any one of claims 1 to 3 , wherein after the traverse reversal position is changed, the reversal position is not further changed until a predetermined number of windings are performed. 5. The wire winding method according to claim 4, wherein when the threshold value is not exceeded during the predetermined number of windings, the change of the traverse inversion position is canceled. Winding method of wire rod according to any one of claims 1-5 displacement of the dancer, characterized in that the continuously measured by the potentiometer. The winding method for a wire according to any one of claims 1 to 6 , wherein the wire is a coated optical fiber.   When changing the traverse inversion position, the inversion position correction amount is shifted inward or outward, and the winding operation is continued while the correction is automatically completed while continuously confirming this effect. The wire winding method according to any one of claims 1 to 7.

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